Johann was appointed to the chair of physics at the Academy of St. Petersburg in 1766. Christoph had a military career. Leonhard was also helped by three members of the Academy, W L Krafft and A J Lexell, and the young mathematician N Fuss. Fuss was Leonhard's grandson-in-law became his assistant in 1776. Leonhard gives credit to Albrecht, Krafft, and Lexell for their help with his 775 page work on the motion of the moon. Fuss helped Leonhard prepare over 250 articles for publication over about seven years. Fuss acted as Leonhard's
Johann was appointed to the chair of physics at the Academy of St. Petersburg in 1766. Christoph had a military career. Leonhard was also helped by three members of the Academy, W L Krafft and A J Lexell, and the young mathematician N Fuss. Fuss was Leonhard's grandson-in-law became his assistant in 1776. Leonhard gives credit to Albrecht, Krafft, and Lexell for their help with his 775 page work on the motion of the moon. Fuss helped Leonhard prepare over 250 articles for publication over about seven years. Fuss acted as Leonhard's